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Components & Drivetrain

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SHIMANO ROAD 1X OVAL DROP-STOP B CHAINRING - 110 x 4 BCD

 

DROP-STOP B 
110 x 4 BCD assymetric

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POWERTRAC ELLIPTICAL 

The ultimate 1x chainrings for your Shimano 110 x 4 BCD crankset. They feature our patented Drop-Stop® design for the best wear life, chain retention, and mud clearance.

   

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DESCRIPTION

SHIMANO ROAD 1X OVAL DROP-STOP B CHAINRING - 110 x 4 BCD

Wolf Tooth was first to market with cyclocross 1x specific chainrings because we saw cyclocross as the perfect use for our patent pending Drop-Stop® technology. These beautifully machined 110 BCD asymmetric 4-bolt chainrings are optimized for your 1x Shimano CX / road / gravel drivetrain, whether you run Dura Ace 9000, Ultegra 6800, 105 5800, or Tiagra 4700. They are also offset for the ideal 1x chainline.

  • Fits 110 BCD Asymmetric 4-bolt Shimano cranks.
  • Drop-Stop technology: On Wolf Tooth’s patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris which reduces friction.
  • Alternating wide/narrow tooth pattern prevents chain derailment.

POWERTRAC ELLIPTICAL

More power? Check. Better traction? Definitely. Less shifting? Yup. Funky uneven pedal stroke? Not with Wolf Tooth’s PowerTrac Elliptical™ (PTE) chainrings. Our proprietary design means a slightly less ovalized ring (10%) with less aggressive timing (112°) than competitors’ versions; any change to your pedal stroke is unnoticeable for most riders, but they still provide the power and traction benefits inherent to oval chainrings.

It’s like having two chainrings in one! With PowerTrac Elliptical rings, the larger-diameter section of the ring engages with the chain at the optimal point on the downstroke, or “Power Zone” – between 1-5 and 7-11 on a clock face – to take advantage of your body’s natural biomechanical power. For example, during this section a PTE 34t ring is equivalent to a 36t round ring. Similarly, in the “Recovery Zone” (11-1 and 5-7) the smaller section on the PTE ring engages, maximizing efficiency in the weakest part of the pedal stroke; here the PTE 34t ring is equivalent to a 32t round ring.

Additionally, the above provides a smoother, more efficient pedal rotation, which means better traction. Steadier torque on the rear wheel means less spinning out in the “Power Zone,” while pedaling is easier during the “Recovery Zone,” so you maintain momentum.

COMPATIBILITY

  • Fits Shimano 110 BCD asymmetric 4-bolt cranks
  • All sizes are compatible with Dura Ace 9000, Ultegra 6800, 105 5800, RS510, Tiagra 4700 or 4703, Sora R3000 or R3030, and Claris R2000 or R2030 cranks.
  • 38-50t are compatible with 105 R7000, Ultegra R8000, and Dura-Ace R9100. 
  • NOT compatible with Dura-Ace R9200 and Ultegra R8100
  • Size 42t and larger will work with the Dura Ace 9100 power meter
  • Mounts in the big ring position of the cranks but is offset inward for perfect chainline.
  • The stock 2x bolts will not work. You will need our 6mm bolts, which are optimized for single ring mounting.
  • If using a 9-speed drivetrain use a 10-speed chain. It fits tighter for better chain retention
  • Chainline 47.5mm
  • Use Drop-Stop B for all 9, 10, and 11spd chains or 12spd KMC, Connex, Wippermann, Campagnolo, SRAM Eagle, SRAM Road and Transmission (T-type) Flattop chains


DROP-STOP TECHNOLOGY

Wolf Tooth’s patented Drop-Stop® wide/narrow tooth profile delivers ultimate chain retention and mud shedding ability.

2023 Wolf Tooth Drop Stop explainer

RECOMMENDATIONS

  • If you plan to ride in very muddy conditions, we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck.
  • We recommend the use of a clutch style rear derailleur for the best chain security.

 

2023 WOLF TOOTH CHAIN COMPATIBILITY LINK

2023 WOLF TOOTH ELLIPTICAL